Yeast 'rewired' to mate when starving
Caught in the act: Scientists find butterflies splitting into two species
(PhysOrg.com) -- Breaking up may actually not be hard to do, say scientists who've found a population of tropical butterflies that may be on its way to a split into two distinct species.
Unnatural selection: Birth control pills may alter choice of partners
There is no doubt that modern contraception has enabled women to have unprecedented control over their own fertility. However, is it possible that the use of oral contraceptives is interfering with a woman's ability to choose, ...
Fish go mad for ginger gene
There may be plenty of fish in the sea but the medaka knows what it likes. A new study published in the open access journal BMC Biology shows how a single gene mutation that turns Japanese Killifish a drab ...
What she sees in you -- facial attractiveness explained
(PhysOrg.com) -- When it comes to potential mates, women may be as complicated as men claim they are, according to psychologists.
Faithful males do not bring flowers
(PhysOrg.com) -- Fairy-wrens are notorious for their infidelity: despite living in seemingly harmonious monogamous pairs, females produce mostly illegitimate young, and males spend more time courting other ...
Doing it to death: Suicidal sex in 'marsupial mice'
Imagine if you only had one shot at passing on your genes before you died. It happens more often in the natural world than you might expect: suicidal reproduction – where one or both sexes of a species ...
Insects modify mating behavior in anticipation of storms
Insects modify calling and courting mating behavior in response to changes in air pressure, according to results published October 2 in the open-access journal PLOS ONE by Ana Cristina Pellegrino and José Maurício Bento, ...
Biologists confirm role of sperm competition in formation of new species
Female promiscuity—something that occurs in a majority of species, including humans—results in the ejaculates from two or more males overlapping within her reproductive tract. When this happens, sperm ...
The 'in-law effect': Male fruit flies sleep around but females keep it in the family
Male fruit flies like to have a variety of sexual partners, whereas females prefer to stick with the same mate – or move on to his brothers.
Immune system study could help conserve endangered species
(Phys.org) —A study by University of Georgia ecologists has found that diversity in mammal immune system genes may have more to do with the opportunity to choose a mate than with exposure to parasites.
Guppies lie about mate choice to trick rivals
When it comes to sex among guppies, competition is high for those at the top of the game. To get around this predicament, a recent study has shown, guppies use trickery. ...
Promiscuity and sperm selection improves genetic quality in birds
New research from the University of East Anglia has shown that females can maximise the genetic quality of their offspring by being promiscuous.
Scientists shut down reproductive ability, desire in pest insects
Kansas State University entomologists have helped identify a neuropeptide named natalisin that regulates the sexual activity and reproductive ability of insects.